CN207441970U - A kind of multibeam antenna - Google Patents
A kind of multibeam antenna Download PDFInfo
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- CN207441970U CN207441970U CN201721649603.XU CN201721649603U CN207441970U CN 207441970 U CN207441970 U CN 207441970U CN 201721649603 U CN201721649603 U CN 201721649603U CN 207441970 U CN207441970 U CN 207441970U
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- frequency
- low frequency
- multibeam antenna
- rabbet joint
- line
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Abstract
The utility model provides a kind of multibeam antenna, includes reflecting plate and the low frequency array being mutually parallel of three row that are fixed on the reflecting plate or more, adjacent two low frequency radiating elements for arranging the low frequency array shift to install；It is arranged on the frequency-selective surfaces on each axis of the low frequency array or/and along the low frequency array extending direction both sides.The utility model improves the isolation between the low frequency radiating element and cross polarization on the premise of miniaturization is met, and improves antenna performance, realizes purpose simple in structure, at low cost.
Description
Technical field
The utility model is related to communication base station field of antenna more particularly to the multibeam antenna based on Frequency Band Selection face.
Background technology
Current mobile communications data traffic explosive growth, increasingly higher demands are proposed to power system capacity.In order to answer
To superelevation telephone traffic and data volume under the flows of the people high density scene such as dense city, the race to take place frequently, festivals or holidays, maximization carries
The service efficiency of high intra-site, a most efficient method are using multibeam antenna, by conventional 120 ° of sectors again into line splitting, nothing
Any frequency spectrum resource and site resource need to be increased newly, improve operator wireless network operation stability and bearer cap.With antenna
Increasingly requirement miniaturization, in the large scale arrays such as 5G, the designing axiom of traditional phased array is to be independently engineered out one first
The phased array element in a broadband places it in array environment work, especially for multibeam antenna, as array element distance is got over
Come nearer, the mutual coupling effect between antenna also influences the performance of antenna.
In the prior art, the array layout multibeam antenna being used in mixed way there are two row and three row oscillators it is either square and
The antenna that the combination of triangular module formula is structured the formation.But all it is to be operated in high band (more than 1710MHz), narrow-band, this array cloth
Office is not particularly suited for low-frequency range, ultra wide band multibeam antenna (694-950MHz), since low-frequency range wavelength is too long, can cause more ripples
Beam antenna width is too wide, is unable to reach Miniaturization Design requirement, nor can reach similary horizontal plane Sidelobe Suppression effect.
Utility model content
The purpose of this utility model is intended to provide a kind of multibeam antenna, is selected by adding frequency between low frequency array
Face on the premise of antenna miniaturization size is ensured, reduces mutual coupling, reaches and improve isolation and cross-polarized technique effect.
To achieve these goals, the utility model provides following technical scheme：
A kind of multibeam antenna, the side plate being connected including reflecting plate and with the reflecting plate, further includes:
At least three row are fixed on the low frequency array on the reflecting plate and being mutually parallel, the adjacent two row low frequency array
Low frequency radiating element shifts to install；
It is arranged on each axis of the low frequency array or/and is arranged in the side plate along the low frequency array extending direction
On frequency-selective surfaces.
Further, it is provided with parallel with the low frequency array described in the multibeam antenna on reflecting plate and is arranged at intervals
First partition, the first partition is equipped with multiple protrusions in the one side away from the reflecting plate, and the protrusion is with described first
The adjacent low frequency radiating element in partition plate wherein one side is correspondingly arranged, the low frequency radiating element of the first partition opposite side with
The notch that two neighboring protrusion limits is correspondingly arranged.
Further, the frequency-selective surfaces being arranged on the axis of the low frequency array are first frequency selection table
Face is arranged between the two neighboring low frequency radiating element of same row.
Further, the first frequency selects surface to be arranged on second partition, and the second partition and phase
The spacing of adjacent two low frequency radiating elements is equal.
Further, the first frequency selects surface to be etched on second partition, and the second partition is pcb board.
Further, the first frequency selects surface as the slot structure that is opened up on second partition.
Further, first frequency selection surface is oppositely arranged by four and the first L-shaped line of rabbet joint and is horizontally set with
It is formed among first line of rabbet joint and in second line of rabbet joint of " I " font.
Further, the first frequency selection surface has the first resonance frequency point and the second resonance frequency point of narrow-band,
Wherein, the length of first line of rabbet joint is 0.25 times of the first resonance frequency point wavelength, and the length of second line of rabbet joint is institute
State the second resonance frequency point wavelength 0.5 times.
Further, the slot width of first line of rabbet joint and second line of rabbet joint is the center frequency of the multibeam antenna
0.005 times of point wavelength.
Further, height raised described in the first partition is the center frequency point wavelength of the multibeam antenna
0.25-0.5 times, the length of 0.25-0.5 times of center frequency point wavelength.
Further, the height of the second partition is the 0.25-0.5 of the center frequency point wavelength of the multibeam antenna
Times.
Further, it is second frequency to be arranged on along the frequency-selective surfaces of the low frequency array extending direction both sides
Surface is selected, is arranged along the extending direction of the low frequency array and on the side plate.
Further, the second frequency selects surface as a pair of symmetrical U-type groove crack structure, the U-type groove crack structure
The 3rd resonance frequency point and the 4th resonance frequency point with narrow-band, the U-type groove crack structure include the 3rd line of rabbet joint that is mutually parallel and
4th line of rabbet joint and the 5th line of rabbet joint for connecting the three, the 4th lines of rabbet joint；Wherein；
3rd slot length is 0.25 times of the 3rd resonance frequency point wavelength, is the apart from the reflecting plate floor height
0.2-0.4 times of three resonance frequency point wavelength；4th slot length is 0.25 times of the 4th resonance frequency point wavelength, described in
Reflecting plate floor height is 0.04-0.1 times of the 4th resonance frequency point wavelength；And the 3rd line of rabbet joint and the 4th line of rabbet joint
Length is unequal.
Further, the slot width of the symmetrical U-type groove crack structure is the center frequency point ripple of the multibeam antenna
Long 0.005 times.
Further, the 5th line of rabbet joint of the pair of U-type groove crack structure is mutually parallel or overlaps.
Compared with prior art, the embodiment of the utility model has the following advantages：
In the multibeam antenna of the utility model, aerial array is staggered by the low frequency radiating element triangle for being in different lines
It forms, increases low frequency radiating element distance, which also sets up is arranged in parallel and at interval first partition with the low frequency array
And the frequency on the side plate is arranged on each axis of the low frequency array or/and along the low frequency array extending direction
Select surface.Frequency selective surface structure has one or more resonant frequency, has certain bandpass characteristics, and it has
Specific electromagnetic wave resonance characteristic and low frequency radiating element radiation field formed it is a kind of couple parasite current, so as to reduce antenna work
Make the mutual coupling between oscillator unit in frequency band, realize " decoupling " effect, improve the isolation between the low frequency radiating element
With cross polarization, reducing antenna physical size simultaneously so as to fulfill multibeam antenna, improving antenna performance, simplify day knot
Structure reduces cost.
The additional aspect of the utility model and advantage will be set forth in part in the description, these will be from following description
In become apparent or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned multibeam antenna of the utility model and/or additional aspect and advantage are from below in conjunction with the accompanying drawings to embodiment
Description in will be apparent and be readily appreciated that, wherein：
Fig. 1 is a kind of stereogram of multibeam antenna provided by the utility model；
Fig. 2 is the top view of multibeam antenna shown in FIG. 1；
Fig. 3 is the sectional perspective schematic diagram of the first partition in the utility model；
Fig. 4 a-d be the utility model in be located at the first partition on the first frequency select surface its
The structure diagram of his slotted unit；
Fig. 5 is the sectional perspective schematic diagram of the reflecting plate in the utility model；
Fig. 6 a are that the first frequency for the edge guard for being located at the reflecting plate in the utility model selects surface
First embodiment schematic diagram；
Fig. 6 b are that the first frequency for the edge guard for being located at the reflecting plate in the utility model selects surface
Second embodiment schematic diagram；
Fig. 7 is the structure diagram of the feeding network in the utility model；
Fig. 8 is the transfer curve figure that first frequency selects surface described in the utility model；
Fig. 9 is the transfer curve figure that second frequency selects surface described in the utility model；
Figure 10 is a kind of another embodiment of the stereogram of multibeam antenna provided by the invention；
Figure 11 is the structure diagram of feeding network described in embodiment described in Figure 10.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
For the antenna for base station that working frequency range is 690MHz~960MHz, the utility model provides a kind of multibeam antenna,
Solution cannot be provided simultaneously with the technical issues of miniaturization and high-isolation, high cross polarization in the prior art.
A kind of multibeam antenna of the utility model, the side plate being connected including reflecting plate 100, with the reflecting plate 100
110th, the low frequency array and be the low frequency array that the axial direction that at least three row are fixed on the reflecting plate 100 is mutually parallel
The feeding network of feed.For ease of description, the utility model is said so that the multibeam antenna includes three row low frequency arrays as an example
It is bright, as shown in Figure 1 and Figure 2, three row low frequency arrays of the multibeam antenna 1000 be respectively defined as the first low frequency array 10,
Second low frequency array 20, the 3rd low frequency array 30, three row low frequency arrays 10,20,30 are arranged successively along the reflecting plate width
Row, the second low frequency array 20 are located at the centre position of three arrays.The low frequency radiating element 40 of the three row low frequency array is same
It is staggered in one plane, which effectively reduces the size of antenna.
The multibeam antenna further includes first partition 50, Yi Jizhi that is parallel and being arranged at intervals between the low frequency array
The frequency-selective surfaces being arranged on less at wherein the one of on the axis of the low frequency array and low frequency array both sides.
The first partition 50 and first, second, third low frequency array 10,20,30 be arranged at intervals and with it is adjacent
The distance of the two row low frequency arrays is equal.It is equipped at intervals in the first partition 50 in the one side away from the reflecting plate 100
Multiple raised 51.As shown in Figs. 1-2, the first partition 50 there are two being set between three column arrays, any first partition 50
Protrusion 51 corresponding with the low frequency radiating element 40 in first low frequency array 10 and the 3rd low frequency array 30 set
It puts, accordingly, by the low frequency spoke on two neighboring described raised 51 notch 52 limited and second low frequency array 20
Penetrate unit 40 be correspondingly arranged namely it is described protrusion and notch correspond to respectively first partition both sides low frequency radiating element setting.By
It is slightly above being commonly designed highly for the partition plate between array in the height of the protrusion 51, therefore it can inhibit first low frequency array
10 electromagnetic wave with the 3rd low frequency array 30 spatially couples.
In the present embodiment, raised 51 length is the 0.25-0.5 of the center frequency point wavelength of the multibeam antenna
Times.
Except the first partition 50, the multibeam antenna, which further includes, is arranged on each of the low frequency array 10,20,30
The frequency-selective surfaces of the side plate are arranged on a axis or/and along the low frequency array extending direction.
The utility model is based primarily upon the use of frequency selective surface, reaches and improves isolation and cross-polarized technology effect
Fruit.Specifically design can be for it：
The frequency-selective surfaces being arranged on each axis of the low frequency array 10,20,30 select for first frequency
Surface is arranged between same single-row and two neighboring low frequency radiating element on the second partition of equi-spaced apart, and described
The spacing of two partition plates and adjacent thereto two low frequency radiating elements is equal.In addition, first frequency selection surface can be erosion
It is engraved on second partition, the second partition is pcb board.
The first partition 50 and the second partition 60 are metal material.
As seen from Figure 1, Figure 2, the second partition 60 is placed on the axis of low frequency array described in each column, with coaxial institute
State the setting of 40 equi-spaced apart of low frequency radiating element.The first frequency selection surface 61 is opened up on each second partition 60,
First line of rabbet joint of L-type and cross among first line of rabbet joint and be in that first frequency selection surface 61 is oppositely arranged by four
Second line of rabbet joint composition of " I " font.As shown in figure 3, first line of rabbet joint is respectively 611,612,613,614, size is identical,
A dotted rectangle is formed, second line of rabbet joint 615 is located at the middle of the dotted rectangle.Due to the second partition 60
Size it is identical, the distance of the low frequency radiating element 40 of both sides adjacent thereto is equal, if the dotted rectangle is located at
60 middle of second partition, then the distance of two adjacent dotted rectangles is also identical.Preferably, first line of rabbet joint
611st, 612,613,614 and second line of rabbet joint 615 slot width for the multibeam antenna center frequency point wavelength
0.005 times.
As shown in figure 8, first frequency selection surface 61 is respectively compared with low-frequency range and higher frequency band tool, there are two resonance
Frequency point all generates narrow working frequency range near resonance frequency point, and the transmissison characteristic S21 of this time-frequency band is close to 0, i.e., at this two
Resonance frequency point is touched with preferable bandpass characteristics.Described two resonance frequency points are the first resonance frequency point and the second resonance frequency respectively
Point, the length of first line of rabbet joint 611,612,613,614 are 0.25 times of the first resonance frequency point wavelength, second slot
The length of seam 615 is 0.5 times of the second resonance frequency point wavelength.Therefore, the second partition 60 is also therefore with preferable
Bandpass characteristics.Frequency selective surface between first frequency selection surface 61 can also be as shown in figures 4a-4d another several
Slotted unit structure, as present frequency selective surface, overall dimensions meet the resonance frequency of selected working frequency range for position
The integral multiple length of point wavelength.
In the present embodiment, the height of the second partition 60 is the 0.25- of the center frequency point wavelength of the multibeam antenna
0.5 times, 0.6-0.8 times of the length of two 40 distances of low frequency radiating element adjacent thereto.
In any embodiment, in multibeam antenna described above, second frequency selection surface is also provided with,
It is spaced apart along the extending direction of the low frequency array 10,20,30 and on the side plate 110, makes the dualbeam day
Line further promotes the transmittance of frequency, improves the technique effect of suppression level graing lobe.
As shown in figure 5, multiple second frequencies are equipped on two side plates 110 selects surface 120, the second frequency choosing
The extending direction for selecting surface 120 is parallel with the extending direction of the low frequency array 10,20,30.
According to Fig. 6 a-6b, the second frequency selects surface as a symmetrical U-type groove crack structure, the U-type groove seam
Structure includes two lines of rabbet joint parallel to the reflecting plate 100, is the 3rd line of rabbet joint 121,121 ' and the 4th line of rabbet joint 122 respectively,
122 ', the length of the 3rd line of rabbet joint 121,121 ' and each corresponding 4th line of rabbet joint 122,122 ' is inconsistent；3rd line of rabbet joint
It is connected between 121,121 ' and the 4th line of rabbet joint 122,122 ' with the 5th line of rabbet joint 123,123 ', the 5th line of rabbet joint 123,
123 ' are respectively perpendicular to the 3rd line of rabbet joint 121,121 ' and the 4th line of rabbet joint 122,122 '.
As shown in figure 9, the second frequency selection surface also has in higher frequency band there are two resonance frequency point, in resonance respectively
Frequency point nearby all generates narrow working frequency range, the transmissison characteristic S21 of this time-frequency band is touched close to 0 in two resonance frequency points
With preferable bandpass characteristics.Described two resonance frequency points are the 3rd resonance frequency point and the 4th resonance frequency point respectively, the described 3rd
The length of the line of rabbet joint 121 is 0.25 times of the 3rd resonance frequency point wavelength, humorous for the 3rd apart from 100 floor height of reflecting plate
It shakes 0.2-0.4 times of frequency point wavelength；The length of 4th line of rabbet joint 122 is 0.25 times of the 4th resonance frequency point wavelength, away from
From 0.04-0.1 times that 100 floor height of reflecting plate is the 4th resonance frequency point wavelength.Therefore, the side plate 110 also has
Preferable bandpass characteristics.
In U-type groove crack structure described in symmetrical both sides, the 5th line of rabbet joint can be parallel or be overlapped.Such as Fig. 6 a, when described
During five line of rabbet joint 123 that five lines of rabbet joint are mutually parallel for left and right sides, the 3rd line of rabbet joint 121,121 ' that connects respectively and described
4th line of rabbet joint 122,122 ' is separated from each other.Such as Fig. 6 b, when five line of rabbet joint 123 ' of the 5th line of rabbet joint for coincidence, vertically connect
The 3rd line of rabbet joint 121,121 ' and the 4th line of rabbet joint 122,122 ' for connecing both sides are also connected respectively.
The slot width of the U-type groove crack structure is 0.005 times of the center frequency point wavelength of the multibeam antenna.
Above-mentioned first frequency selection surface and second frequency selection surface can be in the multibeam antenna
Upper to use simultaneously or only use one of which frequency-selective surfaces, common purpose is to reach the technology effect of suppression level graing lobe
Fruit.
The structure of the feeding network 70 of multibeam antenna described in the present embodiment is as shown in fig. 7, it includes Butler electric bridge
Matrix 71 and phase compensating circuit 72.Each beam signal passes through phase shifter, beam-forming network and aerial array to space
Transmitting.In the present embodiment, using 2X3 Butler electric bridge matrixes, the radiofrequency signal of two wave beams is fed directly into after phase shifter
Two input terminals a1 and the a2 input of electric bridge, export in three output terminals b1, b2, b3, are then connected to the three row low frequency
Array, wherein the intermediate output mouth b2 connections phase compensating circuit 72 of the Butler electric bridge matrix 71, the phase
Compensation circuit 72 connects second low frequency array 20, and for the phase of compensated array dislocation, suppression level face graing lobe reaches ripple
Beam narrows, improves the resolution ratio of antenna.
For multibeam antenna provided by the utility model, it may include there are four row low frequency arrays, as shown in Figure 10, more ripples
Beam antenna includes the 4th low frequency array 210, the 5th low frequency array 220, the 6th low frequency array 230 and the 7th low frequency array respectively
240.With including the multibeam antenna 1000 of the three row low frequency array 10,20,30 difference lies in feeding network 270,
Including Butler electric bridge matrix 271 and phase compensating circuit 272, correspondingly, the Butler electric bridge matrix 271 is 2X4 Barts
Electric bridge matrix is strangled, the radiofrequency signal of two wave beams is fed directly into two input terminals c1 and the c2 input of electric bridge after phase shifter,
After the Butler electric bridge matrix 271, signal is transmitted to by two-stage output port in low frequency array, level-one output port
For two output terminals d1 and d2, two level output port for level-one output port d1 and d2 be each divided into again two output terminal e1 and
E2, e3 and e4.Four two level output port e1 and e2, e3 and e4 fourth low frequency array 210 adjacent to two respectively
It is fed respectively with the 5th low frequency array 220, the 6th low frequency array 230 and the 7th low frequency array 240, wherein defeated
Exit port e2 connects the 5th low frequency array 220 and the 7th low frequency array by the phase compensating circuit respectively with e4
240, from shown in Figure 11.5th low frequency array 220 and the position that the 7th low frequency array 240 is spaced low frequency array
Put relation.
The utility model is by including three row or parallel and Heterogeneous Permutation low frequency array the multibeam antenna of four row, increasing
The distance between described low frequency radiating element is beneficial to the realization of miniaturization.The multibeam antenna has been added positioned at institute simultaneously
The first frequency that is equipped with stated in low frequency array selects the second partition on surface and positioned at the adjacent low frequency array
Between the first partition and positioned at the reflecting plate both sides be equipped with the second frequency selection surface the side
Plate.Said frequencies selection face periodic unit structure has one or more resonant frequency, by using frequency selective surface to not
The electromagnetic wave of frequency together, polarized state and incident angle has different frequency selective characteristics, when frequency selective surface is in humorous
During state of shaking, total reflection or total transmissivity occur for incident electromagnetic wave, and sense is presented in perforate, the frequency selective surface impedance operator of flute profile
Property, can by the angle of electromagnetic field and equivalent magnetic current it is concluded that, wholly transmissive state is presented in resonance for frequency selective surface, can
Realize the pass-band performance of certain bandwidth.The specific electromagnetic wave resonance characteristic and oscillator unit radiation field that frequency selective surface has simultaneously
A kind of coupling parasite current is formed, can both reduce the mutual coupling in antenna operating band between oscillator unit, realizes " decoupling " effect,
Improve the isolation between unit and cross polarization.Simultaneously in the utility model, mended including Butler electric bridge matrix and phase
The effective suppression level face graing lobe of feeding network of circuit is repaid, improves the resolution ratio of antenna.A kind of multi-beam in the utility model
Antenna is reducing antenna physical size simultaneously, improves antenna performance, realizes simply, at low cost.
The above is only some embodiments of the utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (15)
1. a kind of multibeam antenna, the side plate being connected including reflecting plate and with the reflecting plate, which is characterized in that further include:
At least three row are fixed on the low frequency array on the reflecting plate and being mutually parallel, the low frequency of the adjacent two row low frequency array
Radiating element shifts to install；
It is arranged on each axis of the low frequency array or/and is arranged in along the low frequency array extending direction on the side plate
Frequency-selective surfaces.
2. multibeam antenna according to claim 1, it is characterised in that：It is set described in the multibeam antenna on reflecting plate
Have and be arranged in parallel and at interval first partition with the low frequency array, the first partition is set in the one side away from the reflecting plate
There are multiple protrusions, the raised low frequency radiating element adjacent with the first partition wherein one side is correspondingly arranged, described
The notch that the low frequency radiating element of first partition opposite side is limited with two neighboring protrusion is correspondingly arranged.
3. multibeam antenna according to claim 1, it is characterised in that：The institute being arranged on the axis of the low frequency array
It states frequency-selective surfaces and selects surface for first frequency, be arranged between the two neighboring low frequency radiating element of same row.
4. multibeam antenna according to claim 3, it is characterised in that：The first frequency selects surface to be arranged on
On two partition plates, and the second partition is equal with the spacing of the two neighboring low frequency radiating element.
5. multibeam antenna according to claim 4, it is characterised in that：The first frequency selects surface to be etched in
On two partition plates, the second partition is pcb board.
6. multibeam antenna according to claim 4, it is characterised in that：The first frequency select surface for second every
The slot structure opened up on plate.
7. multibeam antenna according to claim 6, it is characterised in that：The first frequency selection surface is opposite by four
It sets and the first L-shaped line of rabbet joint and is horizontally set among first line of rabbet joint and is formed in second line of rabbet joint of " I " font.
8. multibeam antenna according to claim 7, it is characterised in that：The first frequency selection surface has narrow-band
The first resonance frequency point and the second resonance frequency point, wherein, the length of first line of rabbet joint is the first resonance frequency point wavelength
0.25 times, the length of second line of rabbet joint is 0.5 times of the second resonance frequency point wavelength.
9. multibeam antenna according to claim 8, it is characterised in that：The slot of first line of rabbet joint and second line of rabbet joint
Slit width degree is 0.005 times of the center frequency point wavelength of the multibeam antenna.
10. multibeam antenna according to claim 2, it is characterised in that：Raised height is described in the first partition
0.25-0.5 times of the center frequency point wavelength of the multibeam antenna, the length of 0.25-0.5 times of center frequency point wavelength.
11. multibeam antenna according to claim 4, it is characterised in that：The height of the second partition is more ripples
0.25-0.5 times of the center frequency point wavelength of beam antenna.
12. the multibeam antenna described in one of which in claim 1-4 and 6-11, it is characterised in that：It is arranged on edge
The frequency-selective surfaces of the low frequency array extending direction both sides select surface for second frequency, along the low frequency battle array
The extending direction of row arranges and on the side plate.
13. multibeam antenna according to claim 12, it is characterised in that：The second frequency selects surface right for a pair
The U-type groove crack structure of title, the U-type groove crack structure have the 3rd resonance frequency point and the 4th resonance frequency point of narrow-band, the U-type groove
Crack structure includes the 3rd line of rabbet joint being mutually parallel and the 4th line of rabbet joint and connects the 5th line of rabbet joint of the three, the 4th lines of rabbet joint；Wherein；
3rd slot length is 0.25 times of the 3rd resonance frequency point wavelength, humorous for the 3rd apart from the reflecting plate floor height
It shakes 0.2-0.4 times of frequency point wavelength；4th slot length is 0.25 times of the 4th resonance frequency point wavelength, apart from the reflection
Plate floor height is 0.04-0.1 times of the 4th resonance frequency point wavelength；And the length of the 3rd line of rabbet joint and the 4th line of rabbet joint
It is unequal.
14. multibeam antenna according to claim 13, it is characterised in that：The line of rabbet joint of the symmetrical U-type groove crack structure
Width is 0.005 times of the center frequency point wavelength of the multibeam antenna.
15. multibeam antenna according to claim 14, it is characterised in that：5th slot of the pair of U-type groove crack structure
Seam is mutually parallel or overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721649603.XU CN207441970U (en) | 2017-11-30 | 2017-11-30 | A kind of multibeam antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721649603.XU CN207441970U (en) | 2017-11-30 | 2017-11-30 | A kind of multibeam antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207441970U true CN207441970U (en) | 2018-06-01 |
Family
ID=62285505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721649603.XU Withdrawn - After Issue CN207441970U (en) | 2017-11-30 | 2017-11-30 | A kind of multibeam antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207441970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834198A (en) * | 2017-11-30 | 2018-03-23 | 京信通信系统（中国）有限公司 | A kind of multibeam antenna |
-
2017
- 2017-11-30 CN CN201721649603.XU patent/CN207441970U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834198A (en) * | 2017-11-30 | 2018-03-23 | 京信通信系统（中国）有限公司 | A kind of multibeam antenna |
| CN107834198B (en) * | 2017-11-30 | 2023-09-26 | 京信通信技术(广州)有限公司 | Multi-beam antenna |
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